Fig 4. Comparison of the number of Buprestidae captured by different trap types.

We pooled the catches from the fan-traps and bottle-traps with and without decoys hanging from the same tree. The grey lines link traps hung in the same tree. The red dots represent the averages and the bars represent the 95% bootstrap confidence intervals. The letters summarise the post-hoc tests for all pairwise comparisons: Different letters indicate a significant difference (after p-value correction for multiple testing). The yellow coloured traps tended to capture more than the green fan-traps and to a lower extent than the multifunnel green traps, but the variation between sites is very large. Note that the comparison between bottle-traps and fan-traps is more uncertain because these traps were not deployed in the same sites nor in the same year.